31644

Appears in sequences

• A convolution triangle of numbers obtained from A036068.at n=31A030524
• Modified Schroeder numbers for q=3.at n=57A114292
• Number of n X 3 binary arrays with each 1 adjacent to exactly two 0's.at n=9A183331
• Number of partitions p of n including floor(mean(p)) as a part.at n=42A241334
• Triangle read by rows: T(n,k) (n>=0, k>=0) is the number of permutations of n with k alignments.at n=51A263775
• a(n) = n!*Sum_{i=1..n} (Sum_{j=1..i} (i/j)).at n=5A307642
• Zeroless factorials (version 2): a(0) = 1, and for any n > 0, a(n) = noz(1 * noz(2 * ... * noz((n-1) * n))), where noz(n) = A004719(n) omits the zeros from n.at n=20A321475